How to find and replace in specific file type everywhere in a directory

sachin

I want to find a keyword in only php files and replace the same with new keyword, How can I do it in linux?

sachin

You can use find command.

-type f :look into files only

-name '*.php' :for file extension php only

-exec :executing grep

find ./ -type f -name '*.php' -exec sed -i -e 's/OldKeyword/NewKeyword/g' {} \;